#include <iostream>

using std::cout;
using std::endl;

template <typename T>
class OutSide
{

template <typename A>
class Inside
{
public:
    template <typename U>
    U func();

};

};


template <typename T>
template <typename A>
template <typename U>
U OutSide<T>::Inside<A>::func()
{

}

void test()
{

}

int main(int argc, char *argv[])
{
    test();
    return 0;
}

